minor rfc850-date parsing improvement suggested by RFC2616 19.3.

minor rfc850-date parsing improvement suggested by RFC2616 19.3.

	* libsoup/soup-date.c (soup_date_parse): minor rfc850-date parsing
	improvement suggested by RFC2616 19.3.

	* libsoup/soup-headers.c (soup_headers_parse_request): allow
	erroneous trailing whitespace after HTTP version. #475169

	* libsoup/soup-message-server-io.c (parse_request_headers): fix
	the parsing of the Host header to assume it already includes the
	port (which it should; the only reason this ever worked is because
	SoupUri ignores the second port number when parse_request_headers
	generates a URL like "http://localhost:9999:9999/").

	* tests/header-parsing.c (reqtests): add a test for #475169

svn path=/trunk/; revision=933